HOTWIRE MODEL 7986 M/HDSL STANDALONE TERMINATION UNIT WITH G.703 INTERFACE USER’S GUIDE Document No.
Copyright E 1998 Paradyne Corporation. All rights reserved. Printed in U.S.A. Notice This publication is protected by federal copyright law. No part of this publication may be copied or distributed, transmitted, transcribed, stored in a retrieval system, or translated into any human or computer language in any form or by any means, electronic, mechanical, magnetic, manual or otherwise, or disclosed to third parties without the express written permission of Paradyne Corporation, 8545 126th Ave. N.
Important Information Important Safety Instructions 1. Read and follow all warning notices and instructions marked on the product or included in the manual. 2.
Important Information EMI Warnings ! WARNING: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment.
Contents About This Guide H Document Purpose and Intended Audience . . . . . . . . . . . . . . . . . . . . . . . . . v H Document Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v H Product-Related Documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vi 1 About the Model 7986 Standalone Termination Unit H M/HDSL Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Contents 3 Initial Startup and Configuration H Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1 H Connecting Power to the Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2 H Optional Power Sources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2 Connecting the Unit to an Optional External DC Power Source . . . . 3-2 H Connecting to the Network . . . . . . . . . . .
Contents 5 Testing H Accessing the Test Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1 H Running Network Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2 Line Loopback . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3 Repeater Loopback . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4 DTE Loopback . . . . . . . . . . . . . . . . . . .
Contents A Configuration Option Tables H Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1 H Network Interface Options Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2 H G.703 Interface Options Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-4 H System Options Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-6 H Communication Port . .
About This Guide Document Purpose and Intended Audience This guide contains information needed to set up, configure, and operate the Hotwire Model 7986 Multirate/High Bit-Rate Digital Subscriber Line (M/HDSL) Standalone Termination Unit with G.703 interface and is intended for installers and operators. Document Summary 7986-A2-GB20-00 Section Description Chapter 1 About the Model 7986 Standalone Termination Unit. Describes the Model 7986 Termination Unit’s features and capabilities.
About This Guide Section Description Appendix A Configuration Option Tables. Contains all configuration options, default settings, and possible settings. Appendix B Standards Compliance for SNMP Traps. Contains SNMP trap compliance information. Appendix C Cables and Pin Assignments. Contains connector and interface information. Appendix D Technical Specifications. Contains physical and regulatory specifications, network and port interfaces, power consumption values, and accessory part numbers.
About the Model 7986 Standalone Termination Unit 1 M/HDSL Overview Hotwire Multirate/High Bit-Rate Digital Subscriber Line (M/HDSL) products maximize customer service areas by varying the DSL line rate. This ensures symmetric DSL connectivity over a wide range of telephone line distances and transmission line qualities. Hotwire M/HDSL products can transport at full or fractional payload rates over a 4-wire, full-duplex circuit over varying distances based on the conditions of the 4-wire loop.
About the Model 7986 Standalone Termination Unit Hotwire 7986 Termination Unit Features The Hotwire Model 7986 M/HDSL Standalone Termination Unit is an endpoint for the chassis-mounted Hotwire Model 8786 M/HDSL Termination Unit housed in the Hotwire 8600 or 8800 Digital Subscriber Line Access Multiplexer (DSLAM). Two Hotwire Model 7986 M/HDSL Standalone Termination Units can also be configured to operate in a central office LTU to customer premises NTU environment.
About the Model 7986 Standalone Termination Unit Network Configuration Figure 1-1 shows a network application using a 2-port Hotwire 8786 M/HDSL Termination Unit for access concentration in a central office (CO). A frame relay switch and a router are connected, through the termination unit, to partner units supporting a host or router, and frame relay encapsulated or unframed data. G.703 CO Site 7986 Frame Relay Switch 2.048 Mb over SDSL Router G.703 7986 EIA-530A V.
About the Model 7986 Standalone Termination Unit Front Panel LED Status Indicators Figure 1-2 shows the front panel of the Model 7986 Standalone Termination Unit. For more information on front panel LEDs, refer to Chapter 4, Monitoring the Unit. TM 03 G .7 SL D PO W ER AL AR M TE ST TM 7986 M/HDSL 98-16087 Figure 1-2. Hotwire Model 7986 Standalone Termination Unit Front Panel Rear Panel Interface Connections Figure 1-3 shows the physical interfaces of the Model 7986 Standalone Termination Unit.
About the Model 7986 Standalone Termination Unit MIB Support The Model 7986 Standalone Termination Unit supports traps as defined in RFC 1215. They may include variable-bindings specified in the following MIBs: H MIB II (RFC 1573) – Defines the general objects for use with a network management protocol in TCP/IP internets and provides general information about the Model 7986 Standalone Termination Unit. H Enterprise MIB – Supports configuration, status, statistics, and tests.
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Using the Asynchronous Terminal Interface 2 User Interface Access You can communicate with the Hotwire Model 7986 Standalone Termination Unit with an asynchronous terminal interface (ATI) using one of the following methods: H Direct connection through the COM port. H Telnet session through the Embedded Operations Channel (EOC). NOTE: Only one terminal interface session can be active at a time, and another user’s session cannot be forced to end.
Using the Asynchronous Terminal Interface Initiating an ATI Session The Main Menu screen is displayed on the screen unless a login ID and password is required or the ATI is already in use. If security is enabled on the Model 7986 Standalone Termination Unit and you used Telnet to access it directly (you did not log in through the MCC), the system prompts you for a login ID and password.
Using the Asynchronous Terminal Interface ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ main Access Level: Administrator Hotwire Model 7986
Using the Asynchronous Terminal Interface The following illustration shows the menu paths to the different ATI screens. Main Status Test Configuration System and Performance Display Identity Test Status Statistics LEDs Control Change Download Reset Identity Code AutoRate Reset Administer Apply Logins Download Device Network Network G.703 Error Performance Statistics Statistics Statistics Network and G.
Using the Asynchronous Terminal Interface Screen Work Areas There are two user work areas: H Screen area – This is the area above the dotted line that provides the menu path, menus, and input fields. The menu path appears as the first line on the screen.
Using the Asynchronous Terminal Interface Navigating the Screens You can navigate the screens by: H Using keyboard keys H Using screen function keys H Switching between the two screen work areas Keyboard Keys Use the following keyboard keys to navigate within the screen. Press . . . To . . . Ctrl-a Move cursor between the screen area and the screen function keys area below the dotted line at the bottom of the screen. Esc Return to the previous screen.
Using the Asynchronous Terminal Interface The current setting or value appears to the right of the field name. You can enter information into a selected field by: H Typing in the first letter(s) of a field value or command. H Switching from the screen area to the screen function area below the dotted line and selecting or entering the designated screen function key.
Using the Asynchronous Terminal Interface Switching Between Screen Work Areas Select Ctrl-a to switch between the two screen work areas to perform all screen functions. " Procedure To access the screen function area below the dotted line: 1. Press Ctrl-a to switch from the screen area to the screen function key area below the dotted line. 2. Select either the function’s designated (underlined) character or press the Tab key until you reach the desired function key.
Using the Asynchronous Terminal Interface Ending an ATI Session Use the Exit function key from any screen to terminate the session. " Procedure To end a session with the asynchronous terminal interface: 1. Press Ctrl-a to go to the screen function key area below the dotted line. 2. Save changes if required. A confirmation message appears if you have made but not saved changes to your configuration. 3. Tab to Exit (or type e or E) and press Enter.
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Initial Startup and Configuration 3 Overview This chapter provides instructions on how to access and configure your unit for the first time. This chapter includes procedures for: 7986-A2-GB20-00 H Connecting power to the unit. H Connecting the unit to the network. H Connecting a system terminal. H Providing initial unit identity information or changing existing identity information. H Configuring your unit using internal switchpacks or using the Configuration Edit menus.
Initial Startup and Configuration Connecting Power to the Unit If your package includes a power pack: Plug the power pack into an ac outlet having a nominal voltage rating between 100–240 Vac. Connect the output cable of the power pack to the connector marked POWER on the rear panel. If your package includes a direct-connection dc power cable: Connect the unit to an external dc power source as described in Connecting the Unit to an Optional External DC Power Source.
Initial Startup and Configuration Connecting to the Network " Procedure To connect your unit to the network: 1. Connect one end of the network cable into the rear panel DSL jack. Connect the other end to your DSL network interface. NOTES: A cross over cable (pins 1, 2 to 4, 5) is required for connecting two 7986 termination units back-to-back. Do not use a flat VF network cable as this may severely degrade the performance of the termination unit. Use only Cat 5 twisted-pair network cable.
Initial Startup and Configuration Entering Identity Information After accessing your unit for the first time, use the Change Identity screen to determine SNMP administrative system information that will be displayed on the Identity screen of the Status branch. To access the Identity screen, follow this menu selection sequence: Main Menu → Control → Change Identity main/control/change_identity Hotwire Model: 7986 IDENTITY System Name: lllQJ98-001 System Location: Bldg.
Initial Startup and Configuration 3. Position the cursor in the System Contact field. Enter the name and contact information for the person responsible for the unit. The maximum length of System Contact is 128 characters. 4. Press Ctrl-a to switch to the screen function key area below the dotted line. 5. Select Save and press Enter. Choosing a Configuration Mode You can make configuration changes either through a VT100 and the unit’s Configuration menus or by manually changing switches on the board.
Initial Startup and Configuration Configuring the Unit Using the Internal Switches Use internal Switchpacks S1 and S2 to manually configure the unit. Use Figure 3-1 to locate Switchpacks S1 and S2. ! HANDLING PRECAUTIONS FOR STATIC-SENSITIVE DEVICES 496-15104 This product is designed to protect sensitive components from damage due to electrostatic discharge (ESD) during normal operation.
Initial Startup and Configuration Switchpack Locations Use Figure 3-1 to locate Switchpacks S1 and S2. Switchpack S1 & S2 ON 1 ON 1 Front 2 2 3 3 4 4 5 6 5 6 7 7 8 8 S2 S1 Rear 98-16073 Figure 3-1.
Initial Startup and Configuration Switchpack Definitions Manually change configuration options by moving Switchpack S1 DIP switches on the card. Table 3-1 lists Switchpack S1 definitions. Table 3-1. Switchpack S1 Definitions Switch # . . . Allows you to . . . 1 Enables or disables Switchpacks S1 and S2. Default in Bold OFF = Switchpacks Disabled ON = Switchpacks Enabled 2 Controls line termination. OFF = 120 Ohm ON = 75 Ohm 3 Selects the unit’s primary timing source.
Initial Startup and Configuration Table 3-2 lists Switchpack S2 definitions. Table 3-2. Switchpack S2 Definitions Switch # . . . Allows you to . . . 1 Control whether the unit is an LTU or an NTU. Default in Bold OFF = NTU ON =LTU 2 Control enabling and disabling of the Autorate capability. Only valid for units configured as LTU. OFF = Autorate Disabled ON = Autorate Enabled 3, 4, 5 Select one of eight preset DSL line rates (refer to Table 3-3).
Initial Startup and Configuration Accessing and Displaying Configuration Options To display configuration options, you must first load a configuration into the edit area.
Initial Startup and Configuration Configuration Edit/Display The Configuration Edit/Display screen is displayed when the current, customer, or default configuration is loaded. To access the Configuration Edit/Display screen, follow this menu selection sequence: Main Menu → Configuration → Current Configuration – or – Main Menu → Configuration → Default Factory Configuration main/config/edit Hotwire Model: 7986 CONFIGURATION EDIT/DISPLAY Î Î Network G.
Initial Startup and Configuration Configuring AutoRate The M/HDSL AutoRate function is controlled from the Network Interface Options screen and allows you to enable or disable AutoRate only from a unit configured as an LTU.
Initial Startup and Configuration Table 3-4 provides the maximum payload rates achievable for each DSL line rate and the number of time slots required to achieve that payload rate depending on whether you are using signaling (time slots 0 and 16) or data only (time slot 0). Table 3-4. Fixed Rate Payload Rates and DSL Line Rates Voice Mode (G.703 to G.703 ) DSL Line Rate (kbps) 7986-A2-GB20-00 Data Mode (G.703 to G.
Initial Startup and Configuration Configuration Loader The Configuration Loader screen allows you to upload configurations to and download configurations from a TFTP server.
Initial Startup and Configuration 2. Position the cursor in the TFTP Server IP Address field. Enter the TFTP server IP address. 3. Position the cursor in the Destination field. Use the spacebar to select a network destination for the TFTP server. Select DSL if the TFTP server destination is the DSL link or COM if the TFTP destination is the COM port. 4. Position the cursor in the TFTP Transfer Direction field. Use the spacebar to select Download from Server or Upload to Server. 5.
Initial Startup and Configuration Saving Configuration Options When changes are made to the configuration options through the Configuration Edit/Display branch, the changes must be saved to take effect. Use the Save key or Save Configuration screen. " Procedure To save configuration options changes: 1. Press Ctrl-a to switch to the screen function key area below the dotted line. 2. Select Save and press Enter.
Initial Startup and Configuration Download Code The Download Code screen allows you to download firmware from a TFTP server.
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Monitoring the Unit 4 What to Monitor This chapter presents information on how to access and monitor Hotwire Model 7986 Standalone Termination Units on the E1 network. You can monitor Model 7986 Standalone Termination Unit operations by viewing: 7986-A2-GB20-00 H System and Test Status screens H Highest priority Health and Status messages on the last line of all screens H Network Error Statistics screen H Network Performance Statistics screen H G.
Monitoring the Unit Viewing System and Test Status To view System and Test Status information, follow this menu selection sequence: Main Menu → Status → System and Test Status ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
Monitoring the Unit Health and Status The following messages can appear in the first column of the System and Test Status screen. The highest priority Health and Status message also appears on all ATI screens on the bottom right. Table 4-1. Health and Status Messages (1 of 2) Message What Message Indicates System Operational There are no problems detected. LOS at Net, Pt 1 An LOS (Loss Of Signal) condition has been detected on the network interface.
Monitoring the Unit Table 4-1. Health and Status Messages (2 of 2) Message What Message Indicates Fallback Rate, Pt 1 The LTU, set to AutoRate Reset AutoRate. enable, synchronized at a AutoRate is designed to find the lower rate when the line was restored after an LOS. best rate possible for your DSL loop conditions. After the DSL loop is up units should be run in fixed rate. Primary Clock Failed A failure has occurred in (G.703 Pt 1) the primary clock source configured from the Network, G.
Monitoring the Unit Self-Test Results The results of the last power-up or reset self-test appear in the middle column of the System and Test Status screen. Table 4-2. Self-Test Results Messages 7986-A2-GB20-00 Message What Message Indicates What To Do CPU Failed The CPU failed internal testing. 1. Reset the unit and try again. DeviceFailed One or more of the Unit’s integrated circuit chips failed device-level testing. 2. Call your service representative for assistance. G.
Monitoring the Unit Test Status The Test Status messages in the following table appear in the right column of the System and Test Status screen. Table 4-3. Test Status Messages Test Status Message Meaning No Test Active No tests are currently running. LLB Test Active, Pt 1 A network Line Loopback test is active on Port 1. PLB Test Active, Pt 1 A Payload Loopback test is active on Port 1. DTE Test Active, Pt 1 A Data Terminal Loopback test is active on Port 1.
Monitoring the Unit Viewing Network Error Statistics The Model 7986 Standalone Termination Unit maintains error statistics on the network DSL interface for port 1. Statistics are maintained for up to 96 15-minute intervals (24 hours).
Monitoring the Unit Use the virtual function keys to page through the intervals and clear statistics. 4-8 This Field . . . Contains . . . Current Interval Timer The number of seconds which have elapsed in the current 15-minute interval. Maximum value is 900 seconds (15 minutes). This counter resets every 15 minutes. Error Events Counter A running total of CRC errors. Range 0 – 65535. This counter resets when the near-end data is cleared.
Monitoring the Unit Viewing Network Performance Statistics Network performance statistics allow you to monitor the current status of the network DSL operations. Performance statistics can assist you in determining the duration of specific conditions and provide a historical context for problem detection and analysis. Statistics are maintained for up to 96 15-minute intervals (24 hours).
Monitoring the Unit 4-10 This Field . . . Contains . . . Current interval timer The number of seconds which have elapsed in the current 15-minute interval. Maximum value is 900 seconds (15 minutes). This counter resets every 15 minutes. Payload Rate The Payload Rate across the DSL interface. DSL Line Rate The rate of the DSL line. The Line rate can be 144 kbps, 272 kbps, 400 kbps, 528 kbps, 784 kbps, 1040 kbps, 1552 kbps, or 2064 kbps. Current Interval Performance data for the current 15 minutes.
Monitoring the Unit Viewing G.703 Performance Statistics G.703 performance statistics allow you to monitor the current status of the network DSL operations. Performance statistics can assist you in determining the duration of specific conditions and provide a historical context for problem detection and analysis. Statistics are maintained for up to 96 15-minute intervals (24 hours).
Monitoring the Unit H Status: Contains the contents of the status events register. The status events register maintains a history of specific events that have occurred during an interval. Values include: — Y – Remote alarm indication signal received at the G.703 interface — L – Loss of signal detected at the G.
Monitoring the Unit Viewing Model 7986 Standalone Termination Unit LEDs The Model 7986 Standalone Termination Unit LEDs can be viewed on the Display LEDs Status screen. This ATI status screen is available locally and remotely. The three groups of LEDs are: H General LEDs display the status of the unit H G.703 LEDs provide the status of the G.
Monitoring the Unit Model 7986 Standalone Termination Unit LEDs The following table contains a description of the LEDs on the Model 7986 Standalone Termination Unit front panel. TM 03 G .7 SL D PO W ER AL AR M TE ST TM 7986 M/HDSL 98-16087 Type LED LED is . . . Indicating . . . General POWER Green Unit has power. Off No power to the Unit. Green, Flashing Unit is in minimum mode and a download is required. Red Device failure, or Power-On Self-Test (POST) is not complete.
Testing 5 Accessing the Test Menu From the Test menu, you can run network tests, data port tests, and a front panel lamp test. To access the Test menu, follow this menu selection sequence: Main Menu → Test main/test Hotwire Model: 7986 TEST Network & G.703 Tests Device Tests Abort All Tests Î Î 7986-A2-GB20-00 ÎÎ ÎÎ –––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––– Ctrl-a to access these functions, ESC for previous menu MainMenu Exit Select . . . To . . .
Testing Running Network Tests Network tests require the participation of your network service provider. To access the Network Tests screen, follow this menu selection sequence: Main Menu → Test → Network & G.
Testing Line Loopback Line Loopback (LLB) loops the received signal on the network interface back to the network without change. CAP CAP E1 DSL Port LIU Transceiver Framer AIS G.703 Port Framer 98-15997 " Procedure To run a Line Loopback: 1. Position the cursor at the Start command next to Line Loopback on the Network Tests screen. 2. Press Enter. The Start command is changed to Stop. 3. To manually stop the test, verify that the cursor is positioned at the Stop command. 4. Press Enter.
Testing Repeater Loopback Repeater Loopback (RLB) loops the signal being sent from the data port back to the data port and to the network interface. CAP CAP E1 DSL Port LIU Transceiver Framer G.703 Port Framer 98-15999 " Procedure To run a Repeater Loopback: 1. Position the cursor at the Start command next to Repeater Loopback on the Network Tests screen. 2. Press Enter. The Start command is changed to Stop. 3. To manually stop the test, verify that the cursor is positioned at the Stop command. 4.
Testing DTE Loopback DTE Loopback loops the G.703 signal back to itself before the signal is sent to the Framer. CAP CAP E1 DSL Port All Ones LIU Transceiver Framer G.703 Port Framer 98-16000 " Procedure To run a DTE Loopback: 1. Position the cursor at the Start command next to DTE Loopback on the Network Tests screen. 2. Press Enter. The Start command is changed to Stop. 3. To manually stop the test, verify that the cursor is positioned at the Stop command. 4. Press Enter.
Testing Send Remote Line Loopback The LTU initiates the test by sending a line loopback up or down command to the remote unit for 10 seconds. When the remote unit detects the loopback up command, it puts itself in line loopback and lights the front panel test LED. The remote unit remains in loopback until it receives a loopback down command. The send line loopback tests both units. External equipment can be used to verify the link.
Testing Send and Monitor 511 The LTU initiates the test by sending a command to the remote unit to send a 511 test pattern. When the remote unit detects the command, it sends a 511 pattern and lights the front panel test LED. Each unit will send and monitor the 511 pattern. The duration and results of the test are displayed on the Network Test screen of each unit. NOTE: The send and monitor test is not a loopback test. Each unit independently sends and monitors a 511 pattern.
Testing Device Tests The Device Tests branch is used to access the only card-level test, the Lamp Test.
Testing Ending an Active Test Except for the Remote Send Line Loopback and Remote DCLB, a test initiated by the user can be ended by the user. Tests can also be terminated automatically by enabling the Test Timeout option from the System Options Menu. H A Test Timeout option is available to automatically terminate a user-initiated Loopback or Pattern test (as opposed to manually terminating a test) after it has been running a specified period of time. The default is 10 minutes.
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Messages and Troubleshooting 6 Overview There are many resources available to assess the status of the device and contribute to problem resolutions.
Messages and Troubleshooting Configuring SNMP Traps An SNMP trap can be automatically sent out through the EOC or the Management port to an SNMP manager when the Model 7986 Standalone Termination Unit detects conditions set by the user. These traps enable the SNMP manager to gauge the state of the network. Refer to Appendix B, Standards Compliance for SNMP Traps, for details of SNMP traps supported by the Model 7986 Standalone Termination Unit.
Messages and Troubleshooting Device Messages The Device Messages in Table 6-1, listed in alphabetical order, can appear in the messages area at the bottom of the ATI screens. Table 6-1. Device Messages (1 of 2) Device Message What Message Indicates Access level is Operator. Configuration is read-only. The operator requested that If configuration options are to be configuration options be edited, use a Login ID that has loaded, but does not have Administrator authority. authority to edit them.
Messages and Troubleshooting Table 6-1. Device Messages (2 of 2) Device Message What Message Indicates What To Do Invalid entry at cursor (1...223, excluding 127) Invalid range. Enter a value within the IP address range. Limit of six Login IDs reached An attempt to enter a new login ID was made, and the limit of six login/password combinations has been reached. 1. Delete another login/password combination.
Messages and Troubleshooting Troubleshooting This Model 7986 Standalone Termination Unit is designed to provide you with many years of trouble-free service. If a problem occurs, however, refer to Table 6-2 for possible solutions. Table 6-2. Troubleshooting (1 of 2) Symptom Possible Cause Solutions Alarm LED is on. One of several alarm conditions exists. Health and Status displays the alarm condition. Refer to Table 4-1, Health and Status Messages, for recommended action.
Messages and Troubleshooting Table 6-2. Troubleshooting (2 of 2) Symptom Possible Cause Solutions Not receiving data. H The network or data port H Check network and data port cables are not connected (check front panel LEDs for more information). H No crossover cable being be g used on the e DSL S network network. H A test is being executed on the unit (check the TEST LED on the front panel). H The far-end device is off-line. Power-Up Self-Test fails. Only Alarm LED is on after power-up.
Security 7 Overview The Model 7986 Standalone Termination Unit provides several methods of security by limiting user access to the ATI through option settings. You can: H Enable the Telnet Login Required option. H Limit the access by setting a Session Access Level option of Operator for the Telnet Session. H Disable the access with the Telnet Session option. See Table A-5, Telnet Sessions Options, in Appendix A, Configuration Option Tables.
Security Access level is also used to control access via Telnet. If the Telnet Session Access Level is set to Administrator (see Table A-5, Telnet Session Options), a Login ID with an Operator access level is not permitted access. Creating a Login Logins apply to the terminal directory connected to the communication port or Telnet access directly to the ATI of the Model 7986 Standalone Termination Unit. Six login ID/password combinations are available.
Security 3. Create the login by entering the following fields. Login IDs and passwords are case-sensitive. On the Login Entry screen, for the . . . Enter . . . Login ID 1 to 10 ASCII printable characters (hex21 through 7E). Blanks are not allowed. Password 1 to 10 ASCII printable characters that can consist of 0–9, a–z, A–Z, # (pound), . (period), – (dash), and / (slash). Re-enter Password 1 to 10 ASCII printable characters characters that can consist of 0–9, a–z, A–Z, # (pound), .
Security Deleting a Login " Procedure 1. To delete a login record, follow this menu selection sequence: Main Menu → Control → Administer Logins 2. Select PgUp or PgDn and press Enter to page through login pages / records until you find the one to be deleted. 3. Once the correct record is displayed, select De l ete and press Enter. 4. To complete the delete action, select Save and press Enter. When the deletion is complete, Command Complete appears at the bottom of the screen.
Security If entering yes to prompt . . . Then . . . Reset COM Port usage H Port type is set to Terminal H Data Rate (kbps) is set to 9.6 H Character Length is set to 8 H Stop Bits is set to 1 H Parity is set to None Reload Factory Defaults Yes (or y) will restore all factory-loaded configuration and control settings contained in the Default Factory Configuration area are loaded.
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IP Addressing 8 Selecting an IP Addressing Scheme The NTU’s network interface IP address is assigned through the peer IP address of the LTU’s Network Interface menu. The NTU obtains the LTU’s IP address and subnet mask when the PPP link is established over the EOC. The LTU IP address and subnet mask are configured from the Communication Protocol Options menu. The Model 7986 Standalone Termination Unit is assigned an IP address and subnet through the Peer IP address of the MHDSL Network interface menu.
IP Addressing IP Addressing Example DSLAM NTU 8786 MCC MCC LTU 8786 MCC Base Address = 126.35.50.1 Port 1 Peer IP Address = 126.35.50.5 MCC Base Subnet Mask = 255.255.255.0 Port 2 Peer IP Address = 126.35.10.1 7986 DSLAM MCC Base Address = 126.35.1.1 MCC Base Subnet Mask = 255.255.0.0 7986 7986 LTU IP Address = 126.35.7.1 LTU Peer IP Address = 126.35.7.2 NTU IP Address = 126.35.7.
Configuration Option Tables A Overview The tables in this appendix summarize the configuration options accessed when you select the Configuration option on the Main Menu. The Configuration options are arranged into groups based upon functionality. Select . . . To Access the . . . To Configure the . . . Network Network Interface Options, Table A-1 E1 HDSL network interface Ports. G.703 Interface G.703 Interface Options, Table A-2 G.703 interface port.
Configuration Option Tables Network Interface Options Menu For Network Interface Options, refer to Table A-1. To access the Network Interface Options screen, follow this menu selection sequence: Main Menu → Configuration → Current Configuration → Network main/config/network Hotwire Model: 7986 NETWORK INTERFACE OPTIONS Î Margin Threshold: Excessive Error Rate Threshold: AutoRate DSL Line Rate –3db 1E–6 Disable 144 Peer IP Address: 111.255.255.
Configuration Option Tables Table A-1. Network Interface Options (2 of 2) DSL Line Rate Possible Settings: 144, 272, 400, 528, 784, 1040, 1552, 2064 Default Setting: 2064 Specifies the DSL line rate of the unit. This option is only available when the standalone unit is configured as an LTU and AutoRate is disabled (unit is in fixed rate). 400 – The DSL Line rate is 400. 528 – The DSL Line rate is 528. 784 – The DSL Line rate is 784. 1040 – The DSL Line rate is 1040. 1552 – The DSL Line rate is 1552.
Configuration Option Tables G.703 Interface Options Menu For G.703 Interface Options, refer to Table A-2. To access the G.703 Interface Options screen, follow this menu selection sequence: Main Menu → Configuration → Load Configuration From → G.703 main/config/G.703 Hotwire Model: 7986 G.
Configuration Option Tables Table A-2. G.703 Interface Options (2 of 2) Line Framing Possible Settings: CRC4, noCRC4 Default Setting: noCRC4 Specifies the framing format to be used by the G.703 interface. CRC4 – CRC4 framing formatting is used for transmitted and received data over the Network Interface. noCRC4 – Non-CRC4 framing format is used for transmitted and received data over the Network Interface. Time Slot 16 Possible Settings: Signaling, Data Default Setting: Signaling Specifies weather the G.
Configuration Option Tables System Options Menu For System Options, refer to Table A-3. To access the System Options screen, follow this menu selection sequence: Main Menu → Configuration → Load Configuration From → System main/config/system Hotwire Model: 7986 SYSTEM OPTIONS Î Î DSL Mode: Test Timeout: Test Duration (min): NTU Enable 10 G.
Configuration Option Tables Table A-3. System Options Test Duration (min) Possible Settings: 1–120 Default Setting: 10 Number of minutes for a test to be active before automatically ending. H The Test Duration (min) option appears when Test Timeout is enabled. 1 to 120 – Amount of time in minutes for a user-initiated test to run before terminating. G.703 Line Termination Possible Settings: 75 ohms, 120 ohms Default Setting: 120 ohms Specifies the impedance of the G.703 interface 75 ohms – The G.
Configuration Option Tables Communication Port For Communication Port Options, refer to Table A-4.
Configuration Option Tables Table A-4. Communication Port Options (2 of 3) Data Rate Possible Settings: 9.6, 14.4, 19.2, 28.8, 38.4 Default Setting: 9.6 Specifies the communication port baud rate. 9.6 – Communication port rate is 9600 bps (Terminal). 14.4 – Communication port rate is 14400 bps (Netlink). 19.2 – Communication port rate is 19200 bps (Netlink). 28.8 – Communication port rate is 28800 bps (Netlink). 38.4 – Communication port rate is 38400 bps (Netlink).
Configuration Option Tables Table A-4. Communication Port Options (3 of 3) Login Required (Asynchronous mode only) Possible Settings: Enable, Disable Default Setting: Disable Specifies if an ID and password are required to access the asynchronous terminal interface on the communication port. Login IDs are created with a password and access level. Refer to Chapter 7, Creating a Login. Enable – Login ID and password are required to access the asynchronous terminal interface.
Configuration Option Tables Management and Communication Options Menu The Management and Communication Options Menu includes the following: H Telnet Session Options, Table A-5 H Communication Protocol Options, Table A-6 H SNMP Traps Options, Table A-7 Telnet Session Options The Telnet session configuration options control whether a Telnet session is allowed through an interconnected IP Network. If allowed, these options determine what level of security to apply to the session to control access.
Configuration Option Tables Table A-5. Telnet Session Options Telnet Session Possible Settings: Enable, Disable Default Setting: Enable Specifies if the Termination Unit will respond to a Telnet session request from a Telnet client on an interconnected IP network. Enable – Allows Telnet sessions between the unit and a Telnet client. Disable – No Telnet sessions allowed.
Configuration Option Tables Communication Protocol Options The communication protocol configuration options specify the information necessary to support the IP communication network, including; IP address and link protocols. Initial values are determined by the configuration you currently have loaded.
Configuration Option Tables Table A-6. Communication Protocol Options (1 of 2) Node IP Address Possible Settings: 000.000.000.000 – 223.255.255.255 Default Setting: 000.000.000.000 Specifies the Node IP address. This option is only available when the standalone unit is configured as an LTU. Address Field – (000.000.000.000 – 223.255.255.255) – Enter an IP address for the node. The range for the first byte is 000 to 223, with the exception of 127. The range for the remaining three bytes is 000 to 255.
Configuration Option Tables Table A-6. Communication Protocol Options (2 of 2) Communication Port Subnet Mask Possible Settings: 000.000.000.000 – 255.255.255.255 Default Setting: 000.000.000.000 Specifies the unit’s Communication Port Subnet Mask when the unit is configured as a network communication link. This option is only used when the Port Use option on the Communication Port Options menu is set to Net Link. If the COM Port IP address is not set (000.000.000.000), the node IP Address will be used.
Configuration Option Tables SNMP Traps Options SNMP configuration options allow you to specify the information necessary to support the Model 7986 Termination unit SNMP traps.
Configuration Option Tables Table A-7. SNMP Traps Options (1 of 2) SNMP Traps Possible Settings: Enable, Disable Default Setting: Disable Controls the generation of SNMP trap messages. The options for addresses and types of traps are located in this table. Enable – SNMP trap messages are sent out to SNMP managers. Disable – No SNMP trap messages are sent out. Number of Trap Managers Possible Settings: 1, 2, 3, 4, 5 Default Setting: 1 Sets the number of SNMP management systems that will receive SNMP traps.
Configuration Option Tables Table A-7. SNMP Traps Options (2 of 2) Enterprise Specific Traps Possible Settings: Enable, Disable Default Setting: Disable Determines if SNMP traps are generated for enterprise-specific events. Enable – SNMP traps are generated for enterpriseSpecific events. NOTE: Refer to Enterprise Specific Traps in Appendix B, Standards Compliance for SNMP Traps. Disable – No enterprise-specific event traps are sent.
Standards Compliance for SNMP Traps B SNMP Traps This section describes the unit’s compliance with SNMP standards and any special operational features for the SNMP traps supported. The unit supports the following traps: H warmStart H authenticationFailure H linkUp H linkDown warmStart SNMP Trap Description Possible Cause warmStart The unit has reinitialized itself. H Reset command. H Power disruption. The trap is sent after the unit resets and stabilizes. There are no variable-bindings.
Standards Compliance for SNMP Traps linkUp and linkDown The link SNMP traps are: H linkUp – The unit recognizes that one of the communication interfaces is operational. H linkDown – The unit recognizes that one of the communication interfaces is not operational. The network and synchronous port interfaces (physical sublayer) are represented by an entry in the MIB-II interfaces table and supported by the DS1 MIB.
Standards Compliance for SNMP Traps Enterprise-Specific Traps EnterpriseSpecific traps indicates that an enterprise-specific event has occurred. The Specific-trap field identifies the particular trap that occurred. The following table lists the enterprise-specific traps supported by the unit: 7986-A2-GB20-00 SNMP Trap Description Possible Cause enterprisePrimary ClockFail(1) A failure of the currently configured primary clock source for the unit has been detected.
Standards Compliance for SNMP Traps SNMP Trap Description Possible Cause enterpriseTestStop(105) All tests have been halted. All tests have been halted on an interface. enterpriseFallback AutoRateClear(113) The LTU was able to resynch to the last known rate after the enterpriseFallback AutoRate(13) was reported. There are no variable-bindings for enterpriseDeviceFail, enterprisePrimary ClockFail.
Standards Compliance for SNMP Traps The tests that affect the enterpriseTestStart, enterpriseTestStop, and the variable-bindings are different for each particular interface. Diagnostic tests are only supported on the physical E1 network and user data port interfaces.
Standards Compliance for SNMP Traps B-6 September 1998 7986-A2-GB20-00
Cables and Pin Assignments C Overview The following sections provide pin assignments: H E1 Network Interface Cable H DSL Network Interface Cable and Connector H COM Port Interface Cable H Power Input Connector H Optional Power Cable POWER G.
Cables and Pin Assignments E1 Network Interface The E1 network interface is either two BNC connectors (Transmit and Receive) for a 75-ohm unbalanced interface, or an RJ48C, 8-position, unkeyed modular connector (Table C-1, Figure C-1) for a 120-ohm balanced interface. Table C-1. E1 120-Ohm Balanced Interface Connector Signal Pin Number Receive Ring 1 Receive Tip 2 Receive Shield 7 Transmit Ring 4 Transmit Tip 5 Transmit Shield 8 Figure C-1.
Cables and Pin Assignments DSL Network Interface Cable The DSL line interface cable is a 20-foot, 24 AWG solid, 2-twisted-pair cable that is RJ48C-to-RJ48C (Table C-2, Figure C-2). Table C-2. DSL Network Interface Connector Pin Number Signal 8-Pin Plug Data in (Ring) 1 Data in (Tip) 2 Data out (Ring) 4 Data out (Tip) 5 Pin #8 Pin #1 97-15884 NOTE: A crossover cable (pins 1, 2 to 4, 5) is required for connecting two 7986 termination units back-to-back.
Cables and Pin Assignments COM Port Interface Cable The COM port connects to either a PC or to an ASCII terminal or printer for alarms. The COM port-to-PC cable is a 14-foot, 26 AWG, 8-conductor cable with an 8-position modular plug keyed connector and a DB9 socket connector (Figure C-3). The COM port connector is an 8-position keyed modular jack (Table C-3). The data signals on this port are referenced to a DTE interface. Table C-3.
Cables and Pin Assignments Power Input Connector The required input power connector leads are shown in Table C-4. Table C-4. DC Power Connector Pin Number Signal +24 Vdc 5 +24 Vdc Return 4 Chassis Ground 3 PIN 6 PIN 1 98-16138 Optional Power Cable The optional power cable is a 14.5-foot, 18 AWG stranded cable. The connector is terminated at one end with a 6-position Molex 39-01-2060 connector. The other end of the cable is terminated with a bare wire that should be connected to a DC power source.
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Technical Specifications D Specifications Criteria* Size Width 7.25 inches (18.4 cm) Height 1.5 inches (3.8 cm) Length 9.4 inch (24.9 cm) Weight Approximately 1.25 lbs. (0.6 kg) Approvals Safety Certifications Refer to the equipment’s label for approvals on product. Power The Model 7986 Termination Unit contains a DC-to-DC converter that requires +24V power input. The +24V power is distributed through a universal power supply supplied with the unit.
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Glossary 511 A random bit test 511 bytes in length. AMI Alternate Mark Inversion. A line coding technique used to accommodate the ones density requirements of E1 or T1 lines. ATI Asynchronous Terminal Interface. A menu-driven, VT100-compatible system for configuring and managing the termination unit. BPV Bipolar Violation. In a bipolar signal, a one (mark, pulse) which has the same polarity as its predecessor.
Glossary DTLB Data Terminal Loopback. LoopBack mode that loops the data for a particular synchronous data port back to the port just before it is combined with the rest of the T1 data stream. DTR Data Terminal Ready. A signal from the DTE to the modem, sent via Pin 20 of the EIA-232 interface (V.24 circuit 108/1, /2), that indicates the DTE is turned ON and connected to the modem. E1 A wideband digital interface operating at 2.048 Mbps, defined by ITU recommendations G.703 and G.704.
Glossary LED Light Emitting Diode. A light or status indicator that glows in response to the presence of a certain condition (e.g., an alarm). LLB Line LoopBack. A test in which the received signal on the network interface is looped back to the network without change. loopback A diagnostic procedure that sends a test message back to its origination point. Used to test various portions of a data link in order to isolate an equipment or data line problem. LOS Loss of Signal.
Glossary TFTP Trivial File Transfer Protocol. A standard TCP/IP protocol that allows simple file transfer to and from a remote system without directory or file listing. TFTP is used where FTP is not available. TXD Transmit Data. Pin 2 of the EIA-232 interface that is used by the DTE to transmit data to the modem. Conversely, the modem uses Pin 2 to receive data from the DTE. UNIX An operating system developed at AT&T Bell Laboratories and since used as the basis of similar operating systems.
Index A Abort All Tests, 5-1 ac transformer, connecting, 3-2 access, to async terminal interface, 2-3 access level effective, 7-1 functions available for, 7-1 access to user interface, resetting/restoring, 7-4 administer login, 7-2 AIS (Alarm Indication Signal), status message, 4-3 Alarm, LED, 4-14 ASCII, printable characters, 3-4 ATI (Asynchronous Terminal Interface) access, 2-1 defined, 1-2 exiting, 2-9 initiating session, 2-2 virtual function keys, 2-7 authentificationFailure, B-1 AutoRate, 3-12, A-2 C
Index D H dc power option, 3-2– 3-18 default configuration area, 3-5 delete, Login ID, 7-4 device, messages, 6-3– 6-4 dimensions, D-1 Disconnect Time, for Telnet session, A-10, A-12 documents, related, vi DOS, TFTP server on, 3-14 download code, 3-17 Download Failed, status message, 4-4 DSL Line Rate, 3-9 Fixed Rate, 3-13 DSL Line Rates, 3-13 DSL Port, LEDs, 4-14 DSLAM, defined, 1-2 DTE loopback , 5-5 health and status messages, 4-3 I identity, 3-4 Impedance, A-7 inactivity timeout, for Telnet session,
Index M P main menu, 2-2, A-1 Management and Communication Options, A-11 management port access, 7-1 settings, 2-1 Margin Threshold, A-2 Memory Fail, status, 4-5 messages alarm and device, 6-1 health and status, 4-3 line 24, 6-3 self-test results, 4-5 test status, 4-6 MIB, support, 1-5 monitoring, 4-1 part numbers, D-1 Passed, self–test result, 4-5 Payload Rates, 3-13 PC connecting, 3-3 requirements, 3-3 Peer IP Address, A-3 performance statistics, 4-9 G.
Index S Save Configuration screen, 3-16 saving option changes, 3-16 screen, function keys, 2-7 screens, for user interface, 2-1– 2-6 SDSL Mode, A-6 security, 7-1 self-test results, 4-5 Send and Monitor 511, 5-7 Send Remote Line Loopback, 5-6 size of unit, D-1 SNMP trap options, 6-2 traps, B-1 start-up, ATI, 2-1 status, test messages, 4-6 subnet, IP addresses, 8-1 Switchpack definitions, 3-8 Switchpack locations, 3-7 Switchpack S1 Definitions, 3-8 Switchpack S2 Definitions, 3-9 system, LEDs, 4-14 System Opt
